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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LUCENE-4060) DirectoryTaxonomyWriter.addTaxonomies does not work well in a multi-threaded environment
Date Wed, 16 May 2012 08:04:04 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shai Erera resolved LUCENE-4060.
--------------------------------

       Resolution: Cannot Reproduce
    Lucene Fields: New,Patch Available  (was: New)

Committed rev 1339032 (3.6.1) and 1339047 (trunk). Also add CHANGES entry and a concurrency
test to TestAddTaxonomy.

Thanks Gilad !
                
> DirectoryTaxonomyWriter.addTaxonomies does not work well in a multi-threaded environment
> ----------------------------------------------------------------------------------------
>
>                 Key: LUCENE-4060
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4060
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: modules/facet
>            Reporter: Shai Erera
>            Assignee: Shai Erera
>             Fix For: 4.0, 3.6.1
>
>         Attachments: LUCENE-4060.patch
>
>
> DirTaxoWriter.addTaxonomies may lead to a corrupt taxonomy index if addCategory is called
in parallel. While reviewing the code, the following changes seemed to be required:
> * Fix the bug
> * Simplify addTaxonomies code -- it's very complicated, seems rather inefficient, and
seems to take care of more than is needed.
> * The intention to support multiple taxonomies is unclear, especially since FacetsPayloadProcessor
can handle only one Directory and one OrdinalMap at a time. So I'd like to change the method
to addTaxonomy. I anyway don't see the reason to add multiple taxonomies at once, one can
call addTaxonomy several times.
> I will post a patch soon.

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